Euro-Zone Data Underline Inflation Risk

LONDON—Factory-gate prices in the euro zone posted their sharpest annual gain for two-and-a-half years in March, keeping pressure on the European Central Bank to tighten monetary policy further.

But the prospect of higher interest rates came as other official data released Tuesday show disposable income fell in the currency area in the final three months of last year, highlighting the weakness of consumer spending in the economic...